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Why does Carmichael's function mean what it does?

  1. Mar 2, 2015 #1
    Carmichael's function λ(n) gives smallest number "m" such that if x≡y mod m ⇒ ax ≡ ay mod n, but WHY?
    How did Carmichael figure this out?
  2. jcsd
  3. Mar 2, 2015 #2


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    2017 Award

    Staff: Mentor

    That is a definition, there is nothing to figure out about definitions.
    You can figure out how to calculate values of this function.
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